asc_camsave

Copies this frame's @frame.camera into asc_prev_cam so asc_camblur has a previous camera to re-project against. One thread, six vector stores, enqueued after the blur has read the copy the last frame left.

lens_params[2].w (holdPrev) freezes the copy — the shutter's positive control, where the previous camera is a chosen instant rather than one frame ago.

Bindings

name	kind
frame_cam	buffer — @frame.camera
lens_params	buffer — asc_lens_params
prev_cam	buffer — asc_prev_cam, read_write